Half of his eight to abeaham s



G. N I D R E V E IW Pipe Wrench.

No. 231,023. Patented Aug.'10, 1880.;

murga p Nrrso Srarns JOHN EVERDING, OF PHILADELPHIA, PENNSYLVANIA, ASSIGrNOR` OF ONE- HALF OF HIS RIGHT TO ABRAHAM S. JENKS, OF SAME PLAGE.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 231,023, dated August 10, 1880,

Application filed Juno 2l, 1880. (N o model.)

To all whom it may concern:

Be it known that I, JOHN EVERDING, of the city and county oi' Philadelphia, in the State of Pennsylvania, have invented certain new 5 and useful Improvements in Pipe-VrencheS, of

which improvements the following is a speciiication.

The object of my invention is to provide a pipe-wrench embodying the qualities of sim- 1o plicity and cheapness in construction and strength, durability, and efficiency in operation, to which end my improvementsconsist in the combination of a threaded stock or body having a fixed jaw upon the end nearest the thread, a sleeve-nut engaging the thread of the stock, a ferrule fitting freely and having its entire bearing upon the nut and held in position longitudinally thereon by a pin or set-screw and a movable jaw or pawl pivoted 2o to the ferrule.

Myimprovements further consist in the combination of a wrench-body, a toothed jaw or pawl pivoted to a ferrule, which has its entire bearing upon a uut movable longitudinally upon the wrench-body, and a strap or guide secured io the wrench-body below its fixed jaw, said strap admitting oi' the longitudinal traverse of the movable jaw, as well as providing for a limited transverse motion thereof, so that 3o the same space may be maintained between the end ofthe paw] and the body ofthe wrench in different positions of the pawl, the outline of the latter being made to correspond substantially with that of the adjacent face of the wrench-body.

The improvements claimed are hereinafter fully set forth.

In the accompanying drawings, Figure l is a section al elevation of a pipe-wrench embody- 4o ing my invention; Fig. 2, a side view, in elevation, of the same, taken at right angles to Fig. 1 5 Fig. 3, a transverse section at the center of the pivot of the movable jaw or pawl, and Fig. 4L a similar section through the nut.

4 5 To carry out my invention I provide a stout cylindrical metallic stock or body, A, flattened at and toward one of its ends, on which is formed a xed jaw, a., having an angularrecess of suitable form to receive a pipe. A

5o screw-thread, d', is cut upon the stock A, ad-

jacent to the ilattened end which carries the iixedjaw.

A long sleeve-nut, B, is fitted upon the stock, its thread, which extends the major portion ot' its length, engaging that of the stock. The inner diameter of nut B for the remainder ot' its length is greater than the diameter ot' the thread c', except at one end, where it is reduced to form a guide or collar, b, tting casily around the cylindrical portion ot' the stock. 6o A portion of the outer surface ot' the nut B, at the end next which its thread is formed, is turned off to form a cylindrical bearing, lb', with a circumferential groove, b2, near its center, the bearing b terminating at a collar, b3, below which the external surface ot' thc nutis milled or corrugated to enable it to be readily grasped and turned.

A ferrule, O, the bore ot' which is such as to admit easily the bearing b ofthe nut, is iitted 7o over said bearing, resting upon the collar b3 and being maintained in longitudinal position upon the bearing by a pin or set-screw, c, which enters the groove b2, while the nut B is free to turn within it. 5 75 A jaw or pawl7 D, the thickness of which is about equal to that of the iattened portion of the stock A, and which is widened toward its free end, upon which a series of teeth or serrations is formed, is pivoted, by a pin or bolt, 8o d, to lugs c', formed upon the outer' end of the ferrule (J, its serrated edge and the angular recess of the fixed jaw a forming the faces between which thev pipe to be turned is grasped.

A strap or guide, E, is secured to the body of the wrench, immediately above the cylindrical part, by a screw, c, which strap prevents the jaw D from turning with the nut B and also from falling outward from the body, space being allowed in the strapl to permit a limited 9o transverse motion of the jaw D within the strap E.

The outer edge of the jaw D is curved to correspond with the outline of the adjacent face of the wrench-body, so that the same space or opening will be maintained between the end of the toothed jaw and the bodyof the wrenchin any position required for a desired diameter of A spring, d', may be applied to press the jaw roo y D 'awa-y from the body of the Wrench, eXcept when the Wrench is in use, in which ease the spring is forced back by thel operation of tightening the Wrench upon the pipe.

The operation ot' the wrench is obvious upon inspection, therotation ofthe nut on the thread of the stock traversin g the ferrule and the pivoted jaw toward or from the xed jaw as required. 4

The Wrench contains but few parts, can be easily made and at comparatively small cost, and presents no points of liability to breakage or deran gement when in use.

I am aware that pipe-Wrenches havin g a iXed jaw and a movable janr operated by a nut,

and a connected clasp or slider, have been here-V drical bearing` formed on one of its ends, a ferrule fitting freely around, having,` its entire bearing` on and held in position longitudinally upon said cylindrical bearing by a pin or set screw, and a movable jaw pivoted to said ferrule, these members being combined for joint operation, substantially as set forth.

2. The combination, in a pipe-Wrench, of a stock or body having a fixed jaw upon one end, a toothed jaw or pawl pivoted to a ferrule, which is movable toward and from the fixed jaw by a nut fitted to a continuous thread upon the stock, said ferrule having its entire bearing upon a cylindrical bearingon the nut, and a strap or guide secured to or formin g part of the stock bet-Ween the xed jaw an d the thread, these members bein g combined for joint operation to prevent the turning and regulate the transverse movement of the movable jaw, substantially as set forth.

JNO. EVERDING. Vitnesses:

JOHN EAsTHAM, D. T. JENKs. 

